Subtract 49/90 from 49/75
49/75 - 49/90 is 49/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
49/75 = 49 × 6/75 × 6 = 294/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
49/90 = 49 × 5/90 × 5 = 245/450 - Subtract the two like fractions:
294/450 - 245/450 = 294 - 245/450 = 49/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/75-49/90 49/75-98/90